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Cyclization of olefinic β-ketoesters. An approach to the synthesis of aplysistatin

Creator:: Skeean, Richard William
Resource Type:: Dissertation
Full Text:: for Richard W. Skeean iv AKNOWLEDGEMENTS I wish to thank Dr. James D. White for his support and

A study of certain novel reactions of 4,6-dimethoxy-5-nitropyrimidine

Creator:: Harper, Richard Waltz
Abstract:: Reaction of 4, 6-dimethoxy-5-nitropyrimidine [I], with refluxing pyridine, was discovered to yield the methylpyridinium salt of 1, 6-dihydr -4-hydroxy-1-methyl-5-nitro-6-oxopyrimidine [III]. Possible use of I as a general N-methylating agent was explored. No appreciable reaction occurred between I and refluxing excess n-butyl alcohol. Similar reaction involving quinoline failed to yield an...
Resource Type:: Masters Thesis
Full Text:: -nitropyrimidine AN ABSTRACT OF THE THESIS OF RICHARD WALTZ HARPER for the MASTER OF SCIENCE (Name) (Degree

A comparative study of the effects of an antistiffness factor and alpha tocopherol upon the creatine excretion of guinea pigs raised on an E-f free diet

Creator:: Schocken, Victor
Resource Type:: Masters Thesis
Full Text:: factor and alpha tocopherol upon the creatine excretion of guinea pigs raised on an E-f free diet AN

Siloxy-cope rearrangements of the trans-l-vinylcyclotridec-3-en-l-ol system

Creator:: Bolesta, Richard Edward
Abstract:: The thermolysis of trans-1 -trimethylsiloxy- 1-vinylcyclotridec- 3-ene (VI-OTMS) led to the formation of two major products: 4-vinylcyclotridecanone (VII) and cyclopentadec-5-en-l-one (VIII) after hydrolysis. Ketone VII is produced by a concerted [3, 3] sigmatropic shift, while ketone VIII is formed by a [1, 3] sigmatropic shift with a concerted or diradical...
Resource Type:: Masters Thesis
Full Text:: Date thesis is presented //a GGUST /7) / by Opal Grossnicklaus for Richard E. Bolesta

Synthetic studies on marine natural products : I. Stereoselective synthesis of E,Z-1,3-Dienes by tandem nucleophilic addition to a dienylphosphonium salt followed by Wittig reaction. II. Synthesis of cyclopropyl oxylipins by a cation mediated carbocyclization

Creator:: Jensen, Mark S.
Resource Type:: Dissertation
Full Text:: approved: James D. White I. A new stereoselective route for the synthesis of E,Z-1,3-dienes using a

Ring expansion reactions of alkoxides and their application toward synthesis of large ring hormone models

Creator:: Seitz, Earl Philip
Abstract:: The potassium salts of a series of 1-vinylcycloalk-3-en-l-ols were found to undergo ring expanding [1, 3]-sigmatropic shifts at 25° when dissolved in hexamethylphosphoramide (HMPA) or 1, 2-dimethoxyethane (DME) with 18-crown-6. The yields and reaction rates were compared with those of the corresponding Siloxy-Cope ring expansions. These anionic cases showed about...
Resource Type:: Dissertation
Full Text:: Redacted for privacyAbstract approved: Richard W. Thies The potassium salts of a series of 1-vinylcycloalk

Synthesis of large-ring analogs of estrone

Creator:: Pierce, John Robert
Resource Type:: Dissertation
Full Text:: privacy Richard W. Thies Various ring expansion routes from benzo medium-ring ketones to large-ring

Substituent control in the oxy-Cope rearrangements of 1-vinyl-trans-cyclotridec-3-en-1-ol systems

Creator:: Daruwala, Khushroo Peshotan
Abstract:: The thermal and anionic rearrangements of substituted 1-vinyltrans- cyclotridec-3-en-l-ol compounds have been studied to determine what effects substituents would have on the sigmatropic shift when placed on the two positions of the 1-vinyl group. For the thermal rearrangements, the a-substituted vinyl-trans-cyclotridecenols gave both the [3,3] and [1,3] shift products of...
Resource Type:: Dissertation
Full Text:: : Redacted for privacy (Richard W. Thies) The thermal and anionic rearrangements of substituted 1-vinyl

Syntheses of large ring hormone analogs

Creator:: Yue, Stephen T.
Abstract:: The (±) 8,9:13,14-diseco-norestradiol, a large ring hormone analog, and its related derivatives, were prepared by a ring expansion approach. The key step of this approach is the establishment of the benzocyclododecenone system via the Caubere reaction. This step not only provides a favorable ring size, it also sets the necessary...
Resource Type:: Dissertation
Full Text:: : SYNTHESES OF LARGE RING HORMONE ANALOGS Abstract approved: _Redacted for privacy Richard W. Thies The

Exploratory studies directed toward the synthesis of large ring hormone analogs

Creator:: Chiarello, Ronald Harry
Resource Type:: Dissertation
Full Text:: TOWARD THE SYNTHESIS OF LARGE RING HORMONE ANALOGS Abstract approved: Redacted for privacy Richard W

ScholarsArchive@OSU

Cyclization of olefinic β-ketoesters. An approach to the synthesis of aplysistatin

A study of certain novel reactions of 4,6-dimethoxy-5-nitropyrimidine

A comparative study of the effects of an antistiffness factor and alpha tocopherol upon the creatine excretion of guinea pigs raised on an E-f free diet

Siloxy-cope rearrangements of the trans-l-vinylcyclotridec-3-en-l-ol system

Synthetic studies on marine natural products : I. Stereoselective synthesis of E,Z-1,3-Dienes by tandem nucleophilic addition to a dienylphosphonium salt followed by Wittig reaction. II. Synthesis of cyclopropyl oxylipins by a cation mediated carbocyclization

Ring expansion reactions of alkoxides and their application toward synthesis of large ring hormone models

Synthesis of large-ring analogs of estrone

Substituent control in the oxy-Cope rearrangements of 1-vinyl-trans-cyclotridec-3-en-1-ol systems

Syntheses of large ring hormone analogs

Exploratory studies directed toward the synthesis of large ring hormone analogs

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